A woman was stabbed multiple times in the lobby of an Upper East Side office building this afternoon, prompting a manhunt for a male suspect. She is expected to survive.

The unnamed 36-year-old victim was in the lobby of 135 East 64th Street at the corner of Lexington Avenue just before 2:30 p.m. when she was attacked. According to the NYPD, she suffered stab wounds to her lower abdomen and lower back, and was transported to New York Hospital in serious but stable condition.

The NYPD is currently seeking a suspect, identified as a black male in his 40s. According to the Post's sources, the suspect is the woman's ex-boyfriend, last seen fleeing the scene by foot in a red shirt.

It is not immediately clear if the victim, or the suspect, worked inside the building, which houses both the Robert Sterling Clark Foundation and the Jewish Foundation for Education of Women.

We'll update as more information becomes available.

Update: The suspect has reportedly been apprehended after "stabb[ing] two more people in the Con Edison building in Union Square." Trevial Terry, 40, worked at Con Edison and allegedly attacked his coworkers. He's been taken into custody and is undergoing psychological examinations at Bellevue.